Models and colour:
NN3:Shimano 3 speed with Rollerbrake front and rear
NN7: Shimano 7 speed with Rollerbrake front and rear
Colour: Shiny black

Meusurements in box: 230 x 83 x 26 cm
Meusurements mounted: 225 x 63 x 110 cm
Meusurements Box: 100 x 63 x 52 cm
Rear carrier: Can be ordered optional as seperate product
Tyre: rear: 26 50 mm wide, front:20 50 mm wide.
Maximum capacity box: 80Kg 
Maximum weight driver: 120kg
Frame: Frame and fork are from high tensile steel.
Frame size: 53 cm.
Color: Shiny black
Material wooden box: made from water resistant FSC approved wood.
Brakes: Shimano rollerbrakes
Wheel lock: Anti rust, hardened steel.
Wheels: Strong wheels with strong aluminium Rims and extra thick spokes.
Lightning: LED lights front and rear - works on battery's
Seatpost: adjustable in height, suitable for persons between 1.57 en 1.98 cm
gears: Shimano Nexus 3 or 
Shimano Nexus 7
easy entry: The Bertus has a very low entry so in combination with his stable stand, Kids can safely get in and out without the Cargobike tipping over.

Closed chaincover,
Super stable 4 point bicycle stand. Kids can safely get in and out without the cargobike tipping over.
The Bertus is very light (much lighterthan a 3 wheel cargobike)
Very low centre of gravity (easy to handle with heavy load)
Extra safe 3 point seat belts in the wooden box.
Awarded as safest child carrier by the ADAC (German National Auto Club)
Very low entry
Bertus is sold by dealers so service near by available
A lot of accessoires available, please contact your dealer
best value for money